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claude-code - 💡(How to fix) Fix [Bug] Anthropic API Error: Invalid JSON - No Low Surrogate in String

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Error Message

[{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)"},"request_id":"req_011CbB4WdzfHtPX5AiG9trL4"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:29:34.326Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)"},"request_id":"req_011CbB4c3k4EyTqPe49htSbL"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:30:47.398Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)"},"request_id":"req_011CbB4djBQD5ntMjkhUxVLJ"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:31:10.418Z"}]

Code Example

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)\"},\"request_id\":\"req_011CbB4WdzfHtPX5AiG9trL4\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:29:34.326Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)\"},\"request_id\":\"req_011CbB4c3k4EyTqPe49htSbL\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:30:47.398Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)\"},\"request_id\":\"req_011CbB4djBQD5ntMjkhUxVLJ\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:31:10.418Z"}]
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Bug Description API Error: 400 The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)

Environment Info

  • Platform: darwin
  • Terminal: ghostty
  • Version: 2.1.143
  • Feedback ID: 49dae3a1-9f9b-44dd-96bb-f6b4ce7820ad

Errors

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)\"},\"request_id\":\"req_011CbB4WdzfHtPX5AiG9trL4\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:29:34.326Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)\"},\"request_id\":\"req_011CbB4c3k4EyTqPe49htSbL\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:30:47.398Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 195621 (char 195620)\"},\"request_id\":\"req_011CbB4djBQD5ntMjkhUxVLJ\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62291)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T01:31:10.418Z"}]

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#api#latency issue#model loading#dependency error#configuration error

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claude-code - 💡(How to fix) Fix [Bug] Anthropic API Error: Invalid JSON - No Low Surrogate in String